Your Sudoku
Play Sudoku free online! Choose Easy, Medium or Hard difficulty.
- Free to use
- No signup
- Nothing to install
- Works in any modern browser
Illustration. Open the tool for the real thing.
See it in action
Shown during play
What is the Sudoku?
Sudoku here is a 9 by 9 NumGrid puzzle: fill every row, column and 3 by 3 box with the digits 1 to 9 without repeats. You can pick Easy, Medium or Hard, switch on pencil Notes, ask for a Hint or Erase a cell, and the game counts time and mistakes.
4 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Play Sudoku free online!
Choose Easy, Medium or Hard difficulty.
Fill the 9×9 grid with no mistakes.
Classic number puzzle game — no download, play instantly in browser.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
How it compares
A plain look at this tool next to the usual alternative.
| This game | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
Questions people ask
Is guessing allowed in Sudoku?
Proper puzzles are meant to be solved with logic alone. This game highlights mistakes immediately so you can correct your reasoning.
What techniques does Hard need?
The in-game guide lists naked singles for Easy, hidden singles and scanning for Medium, and pairs, triples and X-wing for Hard.
Does the game count mistakes and hints?
Yes. Time, Mistakes and Hints are shown during play and on the solved screen.
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